CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to modify protected parts of the file system.
Analysis
Improper bounds checking in Apple macOS (Sequoia 15.7.4 and earlier, Sonoma 14.8.4 and earlier, Tahoe 26.3 and earlier) permits a local attacker to write out-of-bounds memory through a malicious application, potentially allowing modification of protected filesystem areas. The vulnerability requires user interaction to execute the malicious app and affects the file system's integrity rather than confidentiality. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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EUVD-2026-15093
GHSA-v2rp-wxm3-8hxp